var calUtil = {
    getDaysInmonth : function(iMonth, iYear){
      var dPrevDate = new Date(iYear, iMonth, 0);
      return dPrevDate.getDate();
    },
    bulidCal : function(iYear, iMonth) {
      var aMonth = new Array();
      aMonth[0] = new Array(7);
      aMonth[1] = new Array(7);
      aMonth[2] = new Array(7);
      aMonth[3] = new Array(7);
      aMonth[4] = new Array(7);
      aMonth[5] = new Array(7);
      aMonth[6] = new Array(7);
      var dCalDate = new Date(iYear, iMonth - 1, 1);
      var iDayOfFirst = dCalDate.getDay();
      var iDaysInMonth = calUtil.getDaysInmonth(iMonth, iYear);
      var iVarDate = 1;
      var d, w;
      aMonth[0][0] = "日";
      aMonth[0][1] = "一";
      aMonth[0][2] = "二";
      aMonth[0][3] = "三";
      aMonth[0][4] = "四";
      aMonth[0][5] = "五";
      aMonth[0][6] = "六";
      for (d = iDayOfFirst; d < 7; d++) {
        aMonth[1][d] = iVarDate;
        iVarDate++;
      }
      for (w = 2; w < 7; w++) {
        for (d = 0; d < 7; d++) {
          if (iVarDate <= iDaysInMonth) {
            aMonth[w][d] = iVarDate;
            iVarDate++;
          }
        }
      }
      return aMonth;
    },
    ifHasSigned : function(signList,day){
      var signed = false;
      $.each(signList,function(index,item){
    	  var date = new Date(item);
    	  if(date.getDate() == day) {
    		  signed = true;
    		  return false;
    	  }
      });
      return signed ;
    },
    drawCal : function(iYear, iMonth ,signList) {
      var myMonth = calUtil.bulidCal(iYear, iMonth);
      var htmls = new Array();
      htmls.push("<div class='sign_main' id='sign_layer'>");
      htmls.push("<div class='sign' id='sign_cal'>");
      htmls.push("<table class='table'>");
      htmls.push("<tr>");
      htmls.push("<th>" + myMonth[0][0] + "</th>");
      htmls.push("<th>" + myMonth[0][1] + "</th>");
      htmls.push("<th>" + myMonth[0][2] + "</th>");
      htmls.push("<th>" + myMonth[0][3] + "</th>");
      htmls.push("<th>" + myMonth[0][4] + "</th>");
      htmls.push("<th>" + myMonth[0][5] + "</th>");
      htmls.push("<th>" + myMonth[0][6] + "</th>");
      htmls.push("</tr>");
      var d, w;
      for (w = 1; w < 7; w++) {
        htmls.push("<tr>");
        for (d = 0; d < 7; d++) {
          var ifHasSigned = calUtil.ifHasSigned(signList,myMonth[w][d]);
          if(ifHasSigned){
            htmls.push("<td class='on'>" + (!isNaN(myMonth[w][d]) ? myMonth[w][d] : " ") + "</td>");
          } else {
            htmls.push("<td>" + (!isNaN(myMonth[w][d]) ? myMonth[w][d] : " ") + "</td>");
          }
        }
        htmls.push("</tr>");
      }
      htmls.push("</table>");
      htmls.push("</div>");
      htmls.push("</div>");
      return htmls.join('');
    }
};